2. If red team is displayed, it will be changed to a green code after 4 days of continuous declaration of health punch card/KLOC-0, and confirmed by the county-level epidemic prevention and control department.
3. If the yellow code is displayed, the health punch will be declared through the Ankang "Health Code" system. After 7 consecutive days, it will turn into a green code.
4. If the green code is displayed, the big data platform will convert it into yellow code or red code according to the rules.